Power Circuit Earth Fault Relay Qop,Type Du To Clw'S Specn.No.Clw/Es/R-27/Z A Nd As Per Rdso'S Routine Test Scheme(Rdso;S Letter No-El/3.2.10.11 Dt-4.1.93). [ Warranty P Eriod: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitt Ed: Max 8 Lacs ] ]